CFTC Sues Kentucky to Block Kalshi, Polymarket Crackdown

2 hours ago

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How will Kentucky's 14.25% prediction market tax impact companies like Kalshi and Polymarket?

What is the difference between the federal and state governments' stances on prediction market regulation and taxation?

What changes could this Kentucky lawsuit bring to the overall prediction market industry in the U.S.?

CFTC Sues Kentucky to Block Kalshi, Polymarket Crackdown — Image source: Unblock Media

Federal lawsuit seeks to halt Kentucky’s enforcement and planned excise tax on prediction markets
Case could reshape regulatory authority, billions in yearly trading, and platform IPO prospects

On June 23, 2026 (UTC), CoinDesk reported that the Commodity Futures Trading Commission (CFTC) filed a federal lawsuit against Kentucky, aiming to halt the state’s enforcement actions against prediction market platforms Kalshi and Polymarket. The lawsuit arises from Kentucky’s new regulatory measures, which include a 14.25% excise tax on prediction market fees set for 2027, and accusations that Kalshi, Polymarket, and brokers Coinbase, Robinhood, and Webull are running unlicensed sportsbooks under state gambling law.

The CFTC’s suit is its first against a state with a Republican attorney general, highlighting a growing partisan and jurisdictional dispute over prediction markets that handle billions in annual trading. The agency claims exclusive oversight of event contracts under the federal Commodity Exchange Act and contends Kentucky’s actions intrude on its regulatory domain.

Kalshi and Polymarket have moved to transfer the case to federal court, while Kentucky is expected to seek a return to state court, intensifying the federal-state battle for control over prediction markets and related IPOs.

A recent federal court ruling in Michigan sided with state regulators, reinforcing Kentucky’s legal strategy. The CFTC’s case is viewed as an attempt to prompt a Supreme Court decision within 12 to 18 months on the boundaries of state and federal powers over the sector.

According to CoinDesk, the case’s outcome could significantly affect future regulation, platform IPO plans, and billions in yearly trading as federal and state courts address the dispute.